How to redistribute eigrp routes to ospf process?

posemman · ‎02-02-2021

Hi, I would like to ask question about how to redistribute eigrp routes into ospf process?

Scenario is, we have MPLS as a main connection on both offices and this connection use EIGRP routing protocol.

What we need is to create IPSEC VPN as a backup connection when MPLS is down.

What I do in this simulation is I create OSPF on core switch(ESW2) and Fortigate then redistribute EIGRP subnets on OSPF process.

Core switch config(ESW2):

router ospf 1

router-id 2.2.2.2

log-adjacency-changes

redistribute eigrp 27 subnets

network 172.27.252.0 0.0.0.255 area 0

router eigrp 27

network 172.27.252.0 0.0.0.255

network 172.27.253.0 0.0.0.255

network 172.27.7.0 0.0.0.255

no auto-summary

Sergey Lisitsin · ‎02-02-2021

@posemman ,

It is not clear why you want to do redistribution if your goal is to have a backup link. From your core switche's perspective, the only way out to the WAN is via Fortigate firewall, so it only needs a default route. Now, the Fortigate should be configured in a way to have an IPSEC VPN link up and running, but the preferred path over to another site should be via MPLS link. That all is nothing to do with redistribution.